3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('UTC'); session_start(); $session1 = session_id(); if (!isset($_SESSION['init'])) { $_SESSION['init'] = date('Y-m-d H:i:s'); } $init1 = @$_SESSION['init'].'<br/>'; session_regenerate_id(false); echo $init1; echo @$_SESSION['init'].'<br/>'; echo 'session id1 ' . $session1; echo '<br />session id2 ' . session_id(); ?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0110.00418.75
8.3.30.0040.01119.17
8.3.20.0040.00420.34
8.3.10.0000.00721.93
8.3.00.0080.00018.16
8.2.170.0130.00622.96
8.2.160.0140.00020.43
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00421.14
8.2.110.0070.00420.91
8.2.100.0120.00017.84
8.2.90.0060.00320.57
8.2.80.0040.00418.22
8.2.70.0040.00417.75
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0060.00318.06
8.2.20.0040.00417.83
8.2.10.0040.00418.09
8.2.00.0030.00517.96
8.1.270.0060.00323.84
8.1.260.0080.00026.35
8.1.250.0090.00028.09
8.1.240.0060.00323.92
8.1.230.0090.00320.89
8.1.220.0000.00817.79
8.1.210.0030.00718.77
8.1.200.0040.00717.48
8.1.190.0000.00817.48
8.1.180.0040.00418.10
8.1.170.0000.00818.71
8.1.160.0040.00421.98
8.1.150.0080.00019.05
8.1.140.0030.00617.54
8.1.130.0000.00717.83
8.1.120.0070.00017.47
8.1.110.0000.00817.49
8.1.100.0000.00817.55
8.1.90.0040.00417.44
8.1.80.0070.00017.46
8.1.70.0030.00317.51
8.1.60.0060.00317.54
8.1.50.0040.00417.52
8.1.40.0000.00817.62
8.1.30.0030.00617.63
8.1.20.0050.00317.67
8.1.10.0040.00417.64
8.1.00.0020.00517.46
8.0.300.0080.00019.86
8.0.290.0000.00717.00
8.0.280.0040.00418.49
8.0.270.0030.00317.36
8.0.260.0060.00017.30
8.0.250.0070.00017.06
8.0.240.0000.00717.08
8.0.230.0040.00416.94
8.0.220.0030.00317.00
8.0.210.0000.00716.91
8.0.200.0050.00217.04
8.0.190.0000.00816.93
8.0.180.0050.00316.93
8.0.170.0050.00316.86
8.0.160.0030.00517.00
8.0.150.0070.00416.74
8.0.140.0040.00416.80
8.0.130.0050.00213.35
8.0.120.0000.00716.89
8.0.110.0000.00716.83
8.0.100.0040.00416.97
8.0.90.0050.00216.84
8.0.80.0170.00316.93
8.0.70.0000.00716.96
8.0.60.0000.00816.97
8.0.50.0020.00516.76
8.0.30.0110.01117.19
8.0.20.0140.00517.40
8.0.10.0050.00317.00
8.0.00.0060.01216.85
7.4.330.0000.00515.03
7.4.320.0030.00316.64
7.4.300.0030.00316.56
7.4.290.0070.00016.65
7.4.280.0030.00316.46
7.4.270.0000.00716.68
7.4.260.0030.00316.51
7.4.250.0040.00416.57
7.4.240.0040.00316.54
7.4.230.0000.00716.65
7.4.220.0140.01016.71
7.4.210.0150.00016.43
7.4.200.0070.00016.73
7.4.160.0100.00716.42
7.4.150.0110.01117.40
7.4.140.0100.01017.86
7.4.130.0140.01116.63
7.4.120.0090.00916.64
7.4.110.0110.00616.64
7.4.100.0120.00616.55
7.4.90.0030.01316.71
7.4.80.0090.01519.39
7.4.70.0100.00716.68
7.4.60.0100.00716.56
7.4.50.0060.00316.43
7.4.40.0060.01016.52
7.4.30.0100.00716.76
7.4.00.0000.01515.27
7.3.330.0060.00013.34
7.3.320.0000.00513.25
7.3.310.0070.00016.58
7.3.300.0000.00716.41
7.3.290.0100.00316.50
7.3.280.0070.00916.40
7.3.270.0170.00317.40
7.3.260.0050.01316.57
7.3.250.0080.01116.58
7.3.240.0040.01316.50
7.3.230.0090.01216.57
7.3.210.0090.01216.63
7.3.200.0100.00719.39
7.3.190.0060.01016.50
7.3.180.0030.01316.42
7.3.170.0100.00616.60
7.3.160.0060.00916.56
7.3.120.0100.00715.10
7.3.10.0030.01016.67
7.3.00.0040.00916.89
7.2.330.0150.00316.68
7.2.320.0070.01016.91
7.2.310.0030.01316.90
7.2.300.0090.01216.85
7.2.290.0100.00716.95
7.2.130.0090.00616.92
7.2.120.0040.01217.09
7.2.110.0110.00316.93
7.2.100.0060.00317.03
7.2.90.0030.00917.21
7.2.80.0040.01116.84
7.2.70.0040.01116.67
7.2.60.0020.01017.05
7.2.50.0030.01016.93
7.2.40.0060.00616.95
7.2.30.0000.01317.02
7.2.20.0070.00716.96
7.2.10.0100.00617.02
7.2.00.0030.01218.37
7.1.250.0060.00915.71
7.1.200.0070.00315.79
7.1.70.0000.01417.27
7.1.60.0040.01117.30
7.1.50.0000.01117.01
7.1.00.0100.06722.31
7.0.200.0100.00716.79
7.0.140.0000.07021.96
7.0.100.0170.06719.94
7.0.90.0400.08319.86
7.0.80.0070.06319.92
7.0.70.0070.07019.84
7.0.60.0200.07019.89
7.0.50.0100.04720.29
7.0.40.0100.07020.15
7.0.30.0100.08720.13
7.0.20.0030.08319.95
7.0.10.0070.05020.12
7.0.00.0100.09020.02
5.6.280.0000.07720.99
5.6.250.0100.08720.72
5.6.240.0070.08020.54
5.6.230.0130.07320.58
5.6.220.0100.09020.53
5.6.210.0130.07320.70
5.6.200.0100.08721.04
5.6.190.0100.08020.95
5.6.180.0100.06721.02
5.6.170.0070.04020.94
5.6.160.0100.08321.01
5.6.150.0130.07321.02
5.6.140.0030.04321.04
5.6.130.0030.04720.95
5.6.120.0000.05021.08
5.6.110.0100.04321.07
5.6.100.0170.03021.08
5.6.90.0030.04321.05
5.6.80.0030.05720.55
5.6.70.0070.03320.48
5.6.60.0030.04720.45
5.6.50.0000.04320.31
5.6.40.0030.04020.41
5.6.30.0100.07320.47
5.6.20.0000.04320.30
5.6.10.0030.04320.38
5.6.00.0070.03720.39
5.5.380.0070.08320.31
5.5.370.0100.07720.37
5.5.360.0130.07720.32
5.5.350.0100.08020.33
5.5.340.0100.07320.80
5.5.330.0170.07320.77
5.5.320.0070.08020.92
5.5.310.0070.07320.86
5.5.300.0030.04320.92
5.5.290.0100.03720.91
5.5.280.0030.04320.88
5.5.270.0030.04720.79
5.5.260.0030.04320.91
5.5.250.0030.04020.69
5.5.240.0000.04320.18
5.5.230.0130.06020.26
5.5.220.0070.04020.27
5.5.210.0000.04320.20
5.5.200.0070.03720.25
5.5.190.0030.04020.22
5.5.180.0030.05320.23
5.5.160.0000.04320.27
5.5.150.0000.08019.96
5.5.140.0030.04720.26
5.5.130.0030.04020.09
5.5.120.0070.03720.10
5.5.110.0000.04320.26
5.5.100.0000.05020.16
5.5.90.0100.03020.07
5.5.80.0030.08020.15
5.5.70.0130.06020.05
5.5.60.0170.07020.03
5.5.50.0070.07720.13
5.5.40.0130.07320.04
5.5.30.0030.07320.04
5.5.20.0070.08020.11
5.5.10.0130.08020.01
5.5.00.0170.04719.96
5.4.450.0070.04719.29
5.4.440.0000.04319.55
5.4.430.0130.03019.47
5.4.420.0000.05019.11
5.4.410.0000.04319.14
5.4.400.0030.03718.96
5.4.390.0030.03718.96
5.4.380.0070.03319.23
5.4.370.0130.03019.09
5.4.360.0100.04719.09
5.4.350.0000.04718.80
5.4.340.0070.03719.03
5.4.320.0100.03318.78
5.4.310.0100.04018.90
5.4.300.0070.04019.05
5.4.290.0000.04319.04
5.4.280.0000.05019.22
5.4.270.0000.05018.94
5.4.260.0100.03318.92
5.4.250.0070.04018.90
5.4.240.0070.08719.14
5.4.230.0070.08019.22
5.4.220.0100.06018.94
5.4.210.0000.08319.16
5.4.200.0100.06319.04
5.4.190.0030.07718.95
5.4.180.0100.06718.95
5.4.170.0030.04018.77
5.4.160.0200.08318.78
5.4.150.0030.07719.05
5.4.140.0130.06716.26
5.4.130.0100.05016.34
5.4.120.0100.06716.34
5.4.110.0100.06716.46
5.4.100.0130.07016.31
5.4.90.0100.07016.27
5.4.80.0100.05716.36
5.4.70.0130.06716.36
5.4.60.0100.07016.23
5.4.50.0100.05716.41
5.4.40.0070.07716.29
5.4.30.0130.06716.27
5.4.20.0030.06316.27
5.4.10.0030.07716.41
5.4.00.0070.06715.52
5.3.290.0030.04714.50
5.3.280.0130.06314.59
5.3.270.0030.07714.57
5.3.260.0030.08014.56
5.3.250.0030.06314.56
5.3.240.0200.06714.59
5.3.230.0130.04714.43
5.3.220.0030.08314.39
5.3.210.0000.07014.53
5.3.200.0030.08014.51
5.3.190.0170.06014.54
5.3.180.0030.05714.54
5.3.170.0070.04314.55
5.3.160.0070.06314.50
5.3.150.0200.06014.44
5.3.140.0070.08314.49
5.3.130.0030.07014.41
5.3.120.0100.07714.53
5.3.110.0030.07714.54
5.3.100.0000.08313.85
5.3.90.0100.07714.00
5.3.80.0030.07013.96
5.3.70.0030.06713.79
5.3.60.0030.08313.95
5.3.50.0070.04713.88
5.3.40.0070.07313.93
5.3.30.0170.06313.82
5.3.20.0130.06313.60
5.3.10.0100.07013.57
5.3.00.0200.06713.55
5.2.170.0100.03711.31
5.2.160.0070.05711.31
5.2.150.0070.05711.31
5.2.140.0030.06311.31
5.2.130.0030.06711.31
5.2.120.0030.06711.31
5.2.110.0100.06011.31
5.2.100.0070.05711.31
5.2.90.0030.06311.31
5.2.80.0130.06011.31
5.2.70.0070.03311.31
5.2.60.0070.04311.31
5.2.50.0030.05011.31
5.2.40.0000.07011.31
5.2.30.0000.06711.31
5.2.20.0070.05711.31
5.2.10.0030.04311.31
5.2.00.0000.03311.31
5.1.60.0070.05311.31
5.1.50.0030.04711.31
5.1.40.0030.04011.31
5.1.30.0070.04711.31
5.1.20.0100.03011.31
5.1.10.0000.04011.31
5.1.00.0070.04711.31
5.0.50.0070.04311.31
5.0.40.0030.04011.31
5.0.30.0070.05011.31
5.0.20.0070.03011.31
5.0.10.0130.02311.31
5.0.00.0070.05311.31
4.4.90.0030.01711.31
4.4.80.0100.02311.31
4.4.70.0030.04011.31
4.4.60.0030.03711.31
4.4.50.0070.03011.31
4.4.40.0000.02711.31
4.4.30.0000.03711.31
4.4.20.0030.02711.31
4.4.10.0000.04011.31
4.4.00.0030.05311.31
4.3.110.0000.03711.31
4.3.100.0070.03311.31
4.3.90.0000.03711.31
4.3.80.0030.04711.31
4.3.70.0070.01711.31
4.3.60.0000.03711.31
4.3.50.0000.03311.31
4.3.40.0070.02311.31
4.3.30.0030.02011.31
4.3.20.0000.02311.31
4.3.10.0000.03711.31
4.3.00.0030.03311.31

preferences:
47.3 ms | 400 KiB | 5 Q